diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2019-12-14 19:52:56 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-12-29 18:20:06 +0300 |
| commit | 3a4319574584ef5a71e11780cc83337282818882 (patch) | |
| tree | ff97cb551c98b34af9b09d5bb8cb72d15cb798e8 | |
| parent | 007f2ebbac2ac7f0f6d80ca5afd3f51c5a083838 (diff) | |
| download | linux-3a4319574584ef5a71e11780cc83337282818882.tar.xz | |
iio: imu: st_lsm6dsx: check if pull_up is located in primary page
Check if the pull up register is located in the primary or in the
secondary memory page. This is a preliminary patch to support i2c master
controller on lsm6dsm devices
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 6 | ||||
| -rw-r--r-- | drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 13 |
2 files changed, 14 insertions, 5 deletions
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index bd1c77d16147..4974f6fafd53 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -189,7 +189,11 @@ struct st_lsm6dsx_shub_settings { u8 addr; u8 mask; } master_en; - struct st_lsm6dsx_reg pullup_en; + struct { + bool sec_page; + u8 addr; + u8 mask; + } pullup_en; struct st_lsm6dsx_reg aux_sens; struct st_lsm6dsx_reg wr_once; u8 num_ext_dev; diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index b8cfea977968..b5e9f71be085 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -873,6 +873,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .mask = BIT(2), }, .pullup_en = { + .sec_page = true, .addr = 0x14, .mask = BIT(3), }, @@ -1249,6 +1250,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .mask = BIT(2), }, .pullup_en = { + .sec_page = true, .addr = 0x14, .mask = BIT(3), }, @@ -1864,16 +1866,19 @@ static int st_lsm6dsx_init_shub(struct st_lsm6dsx_hw *hw) pdata = (struct st_sensors_platform_data *)dev->platform_data; if ((dev_fwnode(dev) && device_property_read_bool(dev, "st,pullups")) || (pdata && pdata->pullups)) { - err = st_lsm6dsx_set_page(hw, true); - if (err < 0) - return err; + if (hub_settings->pullup_en.sec_page) { + err = st_lsm6dsx_set_page(hw, true); + if (err < 0) + return err; + } data = ST_LSM6DSX_SHIFT_VAL(1, hub_settings->pullup_en.mask); err = regmap_update_bits(hw->regmap, hub_settings->pullup_en.addr, hub_settings->pullup_en.mask, data); - st_lsm6dsx_set_page(hw, false); + if (hub_settings->pullup_en.sec_page) + st_lsm6dsx_set_page(hw, false); if (err < 0) return err; |